Method use

lib/application.js:152–157

* Use the given middleware `fn`. * * Old-style middleware will be converted. * * @param {(context: Context) => Promise } fn * @return {Application} self * @api public

(fn)

   */

  use (fn) {
    if (typeof fn !== 'function') { throw new TypeError('middleware must be a function!') }
    debug('use %s', fn._name || fn.name || '-')
    this.middleware.push(fn)
    return this
  }

  /**
   * Return a request handler callback